A Measurement of the Capture-to-Fission Cross Section Ratios of Uranium-235 and Plutonium-239 with a New Technique
- 1 July 1972
- journal article
- research article
- Published by Taylor & Francis in Nuclear Science and Engineering
- Vol. 48 (3) , 324-330
- https://doi.org/10.13182/NSE72-A22490
Abstract
The ratio of capture to fission cross section, α, has been measured for 235U and 239Pu in the neutron energy range from 8 to 60 keV. A pulsed neutron beam from a 7Li Van de Graaff source was used. The absorption was found by a comparison of the scattered neutrons from the fissile sample with those from a non-absorbing lead sample. The fast fission neutrons were simultaneously detected with an organic liquid scintillator. The normalization of the α (239Pu) data was slightly changed with respect to the values reported earlier in the light of recent evaluations.Keywords
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